ZF 4657.183.072 LOOSE PARTS for WG190 | OEM Genuine Part

Overview

This genuine ZF 4657.183.072 LOOSE PARTS set is a critical service kit designed specifically for the WG 190 series transmission. It contains the essential small components—such as seals, retaining rings, and bushings—that secure and seal the internal assembly. The SKU 4657.183.072 is the OEM-recommended solution for rebuilding the clutch pack or valve body area, ensuring proper hydraulic pressure retention and mechanical alignment. Without this kit, even a perfectly rebuilt main housing can suffer from premature wear. For a complete overhaul, this set is installed alongside the 4657101031: TRANSMISSION HOUSING and the 4657201027: HOUS.FRONT SECT to guarantee a leak-free, factory-spec rebuild.

Symptoms of Failure

• Intermittent gear slipping under load: When the loose parts wear, internal clearances increase, causing the clutch packs to lose grip during acceleration. This is a common long-tail search query for “ZF WG190 gear slip fix.”
• External oil seepage at the housing joint: Degraded seals within the 4657.183.072 kit allow transmission fluid to weep from the mating surfaces of the 4657201020: HOUSING REAR PART, leaving visible drips on the bell housing.
• Harsh or delayed shifting: Worn retaining pins and bushings cause misalignment of the shift valves, resulting in jarring engagement between gears. This symptom often leads technicians to search for “ZF WG190 shift delay repair.”
• Unusual metallic rattling from the transmission: A loose 0631306792: CYLINDRICAL PIN can vibrate against the housing, creating a distinct noise that worsens with RPM.

Technical Specifications

Compatibility

This genuine loose parts kit is engineered for the ZF WG 190 series. It is also compatible with the closely related WG 180 and WG 200 models, as these share the same internal architecture for the clutch and valve body assemblies. The 4657.183.072 kit is not backward-compatible with older WG 150 units due to different seal diameters. Always verify your transmission serial number before ordering. When replacing these parts, it is standard practice to also inspect the TRANSMISSION HOUSING for cracks and the HOUS.FRONT SECT for wear on the bearing journals.

Related Components

Frequently Asked Questions

Q: Can I reuse the old seals from my WG190 if I only replace the main housing?
A: No. The 4657.183.072 kit contains single-use seals that must be replaced whenever the housing is opened. Reusing old seals is the leading cause of post-repair oil leaks, especially at the HOUSING REAR PART joint.

Q: Does this kit include the cylindrical pin for the front section?
A: Yes. The 4657.183.072 set includes the CYLINDRICAL PIN needed to align the HOUS.FRONT SECT with the main casing. If you need additional fasteners, order the CAP SCREW separately.

Q: How do I confirm this part fits my ZF WG190?
A: Check the transmission data plate for “WG 190” and the serial number. This kit is designed for all WG190 variants (A, B, C). If your unit has a modified oil feed system, you may also need the OIL FEED.HOUSG. for proper flow.